<template>
  <nav-bar>
    <div slot="left" class="back" @click="backClick">
      <img src="~assets/img/common/back.svg" alt="">
    </div>
    <div slot="center" class="title">
      <div v-for="(item,index) in titles"
           class="title-item"
           @click="titleClick(index)"
           :class="{active:currentIndex===index}">{{ item }}
      </div>
    </div>
  </nav-bar>
</template>

<script>
import NavBar from "components/common/navbar/NavBar";

export default {
  name: "DetailNavBar",
  components: {NavBar},
  props: {
    titles: {
      type: Array,
      default: () => {
        return ['商品', '参数', '评论', '推荐']
      }
    },
    currentIndex: {
      type: Number,
      default: 0
    }
  },
  methods: {
    titleClick(index) {
      this.$emit('titleClick', index);
    },
    backClick() {
      this.$router.back()
    }
  },
}
</script>

<style scoped>
.title {
  display: flex;
  font-size: 13px;
}

.title-item {
  flex: 1;
}

.active {
  color: var(--color-high-text)
}

.back img {
  margin-top: 12px;
}
</style>
